CN215104742U

CN215104742U - Support unloading device for construction of cast-in-situ section of bridge

Info

Publication number: CN215104742U
Application number: CN202120764044.7U
Authority: CN
Inventors: 李攀; 刘明超; 霍永彬; 于建峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-14
Filing date: 2021-04-14
Publication date: 2021-12-10
Anticipated expiration: 2031-04-14

Abstract

The utility model provides a cast-in-place section of bridge construction is with supporting device that unloads for about among the solution prior art support and go up the problem that the bed hedgehopping limit and do not have automatic adaptability between the support. The utility model provides a cast-in-place section of bridge construction is with supporting device that unloads, includes roof, base, supporting component, stay bolt, two supporting component a left and right sides set up in both sides and right highly support between roof and the base, the top installation aligning piece of roof, this aligning piece are the arc body of compriseing arcwall face and horizontal plane, and are in it is protruding to be provided with a plurality of arcs on the arcwall face of aligning piece, this arc protruding with secondary arc spout cooperation. This technique is through designing supporting component for modular structure, increases or reduces the quantity of standard cushion according to the engineering needs of difference, can realize the actual need of the bed hedgehopping of co-altitude not.

Description

Support unloading device for construction of cast-in-situ section of bridge

Technical Field

The utility model belongs to the technical field of the bridge construction technique and specifically relates to a cast-in-place section of bridge construction is with supporting device that unloads.

Background

At present, in the existing construction scheme of the bridge cast-in-place section, a steel wedge block, a sand cylinder or a dumping block is generally adopted as a temporary support, and the aim is to form a support between the pier top of a pier and a cast-in-place mould box above the pier top.

The three temporary supporting devices have advantages and disadvantages, for example, the welding connection of an upper bearing structure and a lower bearing structure is adopted in the construction of the steel wedge block, the high-altitude welding quality is difficult to guarantee, cutting is needed during unloading, the potential safety hazard of instability of a support structure is wasted; sand section of thick bamboo device that falls to put up need adopt dry fine sand compaction, and the gravel is wet easily in often being under construction, is difficult to draw out the gravel when falling to put up, is unfavorable for the support device and unloads. The unloading block is convenient to use, but the unloading block is supported by the vertical plate, so that the risk of instability exists.

For example, CN206189273U discloses a support unloading block, which comprises an upper support, a lower support, a left support and a right support, wherein the lower waists of the left support and the right support are respectively in sliding fit with the left waists and the right isosceles of the lower support, the upper waists of the left support and the right support are respectively in sliding fit with the left waists and the right isosceles of the upper support, the stable effect can be achieved by only screwing down a nut during assembly in construction, and the upper support can fall down by only unscrewing the nut during falling.

In the structure, the left support and the right support are respectively in sliding fit with the upper support and the lower support, a limiting structure is not arranged, and the risk of sliding and falling off between the left support and the right support and the upper support and the lower support is avoided, so that the whole failure is caused.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model provides a cast-in-place section of bridge construction is with supporting device that unloads for the bearing height limit and the problem that does not have automatic adaptability about among the solution prior art between support and the upper and lower support.

The utility model provides a technical scheme that its technical problem adopted does:

a supporting and unloading device for construction of a bridge cast-in-place section comprises a top plate, a base, supporting components and long bolts, wherein the two supporting components are arranged on two sides in a left-right mode and support the height between the top plate and the base;

the supporting component consists of an upper wedge-shaped block, a pulling bolt mounting block, a standard cushion block and a lower wedge-shaped block, the upper wedge-shaped block is in sliding fit with the wedge-shaped surface of the top plate, and

the upper wedge block and the tie bolt mounting block, the tie bolt mounting block and the standard cushion block are connected through a dovetail sliding structure, and the dovetail sliding structure is arranged along the front-back direction;

the two tie bolt mounting blocks are in threaded connection through a long bolt, and the two tie bolt mounting blocks are respectively connected with the long bolt through forward threads and reverse threads;

the top of the top plate is provided with an arc-shaped notch, the arc-shaped notch is provided with a secondary arc-shaped sliding groove, an aligning block is arranged in the arc-shaped notch, the aligning block is an arc-shaped body consisting of an arc-shaped surface and a horizontal plane, the arc-shaped surface of the aligning block is provided with a plurality of arc-shaped bulges, and the arc-shaped bulges are matched with the secondary arc-shaped sliding groove;

and the lower wedge block is in sliding fit with the base through a wedge surface.

Furthermore, the front edge part and the rear edge part of the supporting component are provided with limiting bulges I, and the limiting bulges I limit the sliding front and rear directions of the supporting component.

Furthermore, limiting bulges II are arranged on the left side and the right side of the top plate and the base, and the sliding left side and the sliding right side of the supporting component are limited by the limiting bulges II.

Further, a dovetail groove and a dovetail protrusion along the sliding direction are arranged on the sliding matching surface between the upper wedge block and the top plate.

Furthermore, the middle position of the long bolt is used as a boundary, and a forward threaded section and a reverse threaded section are respectively formed on the left side and the right side of the long bolt.

Furthermore, the upper surface of the aligning block is provided with a rectangular groove, and a polytetrafluoroethylene plate is placed in the groove.

The utility model has the advantages that:

this technique sets up the stop gear of side direction between riser and upper and lower support, can effectually prevent that the side direction from droing, avoids producing the potential safety hazard.

This technique is through designing supporting component for modular structure, increases or reduces the quantity of standard cushion according to the engineering needs of difference, can realize the actual need of the bed hedgehopping of co-altitude not.

The technology has a certain aligning function, can automatically adjust and adapt to the capacity, and meets the requirement of erecting the template.

Drawings

FIG. 1 is a perspective view of the first embodiment

Fig. 2 is a front view of fig. 1.

Fig. 3 is a perspective view of the support assembly.

Fig. 4 is a perspective view of the support assembly.

Fig. 5 is a perspective view of the base or top plate.

Fig. 6 is a perspective view of the base or top plate.

FIG. 7 is a perspective view of a support assembly according to a second embodiment.

FIG. 8 is a perspective view of a base according to a second embodiment.

FIG. 9 is a front view of the third embodiment.

Fig. 10 is another state diagram of fig. 9.

FIG. 11 is a front view of the fourth embodiment.

Fig. 12 is a front view (style one) of the fifth embodiment.

Fig. 13 is a front view of the fifth embodiment (style two).

FIG. 14 is a perspective view of the top plate in the fifth embodiment.

Fig. 15 is a front view of fig. 14.

Fig. 16 is a perspective view of an alignment block.

Fig. 17 is a perspective view of the upper wedge block.

FIG. 18 is a front view of the sixth embodiment.

In the figure:

10 a base plate and a plurality of supporting plates,

20 top plate, 21 arc gap, 22 secondary arc chute,

30 supporting components, 31 long bolt holes, 32 limiting protrusions I, 33 guiding protrusions, 34 upper wedge blocks, 35 tie bolt mounting blocks, 36 standard cushion blocks, 37 lower wedge blocks, 38 positioning pins,

40 long bolts are arranged on the outer side of the bolt,

50 an auxiliary connecting plate for connecting the upper and lower end of the main body,

60 the limit bulges II and 61 are guided to the sliding grooves,

70 a polytetrafluoroethylene polymer material plate, wherein the polytetrafluoroethylene polymer material plate,

80 aligning blocks, 81 aligning mechanisms, 82 polytetrafluoroethylene plates and 83 arc-shaped bulges.

Detailed Description

A support unloading device for construction of a cast-in-place section of a bridge is arranged between a pier and a cast-in-place beam template bottom die in an auxiliary mode to support the bottom die.

Example one

Referring to fig. 1 to 6, the main body of the apparatus is composed of a base frame 10, a top plate 20, left and right support members 30 on both sides, and a long bolt 40 stretching the support members on both sides, and an auxiliary connecting plate 50 is provided between end surfaces of the left and right support members.

The base 10 is integrally of a trapezoidal platform structure, the two sides of the base are inclined planes I, the inclined planes are arranged towards the inner side, and a splayed combination is formed between the two inclined planes I.

The top plate is of an inverted trapezoidal platform structure, two side surfaces are inclined planes II which are obliquely arranged inwards, and an inverted splayed combination is formed between the two inclined planes II.

The upper base and the top plate are oppositely arranged.

The left and right supporting components have the same structure, the upper surface and the lower surface of each supporting component are designed to be inclined surfaces III, the inclined surfaces III on the upper portion are in sliding fit with the inclined surfaces II of the top plate to form inclined surface sliding fit II, and the inclined surfaces III on the lower portion are matched with the inclined surfaces I of the base to form inclined surface sliding fit I.

The top plate 20, base plate 10 and support assembly 30 are all cast iron parts.

Two oblong holes 31 are provided in the two support members 30, respectively, and are provided with reverse threads. The long bolt 40 is formed by taking the middle position as a boundary line and forming a forward thread section and a reverse thread section on the left side and the right side respectively. Through operating this long bolt, can synchronous control left and right sides supporting component move towards each other or to the back, when moving towards each other, make the distance increase between roof and the base through two inclined plane cooperations, play the rising effect promptly. Conversely, when the two inclined surfaces are matched, the distance between the top plate and the base is reduced, namely, the height is reduced.

Two limiting protrusions I32 are arranged at the front edge and the rear edge of the two inclined planes of the left supporting component and the right supporting component 30, and the left supporting component and the right supporting component are limited in the front-rear direction by the limiting protrusions I32 to prevent falling.

At the left and right sides of roof and base, promptly, the minimum tip on inclined plane is provided with spacing arch II 60, and this spacing arch II plays to the side direction about supporting component's the slip spacing, prevents to drop.

Reinforcing ribs are arranged on the back sides of the base, the top plate and the supporting assembly.

A polytetrafluoroethylene polymer material plate 70 is compounded on the top of the top plate.

The specific using method comprises the following steps:

the device is assembled on the ground, then integrally hoisted to the pier top of the pier, and the template can be installed after the height of the pier is adjusted by the long bolts.

Example two

Referring to fig. 7 and 8, the present embodiment is an improvement on the first embodiment, specifically, a guiding protrusion 33 is disposed at the inclined plane position of the left and right supporting components along the sliding direction, and correspondingly, a guiding sliding slot 61 is disposed on the inclined plane of the top plate and the base and is matched with the above guiding protrusion, wherein the guiding protrusion is slidably disposed in the guiding sliding slot to further slidably guide the sliding direction of the supporting components.

EXAMPLE III

Referring to fig. 9 and 10, an arc-shaped notch is arranged at the top of the top plate 20, the radius of the arc-shaped notch is far larger than the width of the top plate, an aligning block 80 is arranged in the arc-shaped notch, the aligning block has an arc-shaped bottom surface and a planar upper surface, the arc-shaped bottom surface is matched with the arc-shaped notch to form an aligning mechanism 81 in the left-right direction, and when the device is arranged, a template in direct contact with the aligning block has an automatic aligning function.

Example four

Referring to fig. 11, on the basis of the third embodiment, a rectangular groove is formed in the upper surface of the aligning block 80 in the third embodiment, and a teflon plate 82 is placed in the groove. The polytetrafluoroethylene plate is arranged in the aligning block 80, so that the unloading device has certain horizontal position adjusting and aligning functions.

EXAMPLE five

In the present embodiment, the top plate 20, the base 10, the left side support assembly 30, the right side support assembly 30, and the long bolt 40 constitute the above embodiments, and the detailed structure of each part will be described in detail below.

In this embodiment, referring to fig. 12 to 17, the top plate 20 is an iron casting, the top of the top plate 20 is an arc-shaped notch 21, the arc-shaped notch is a quarter-sector structure, the arc-shaped slot is provided with a secondary arc-shaped sliding slot 22, and a centering block 80 is installed in the arc-shaped notch, and the centering block is an arc-shaped body composed of an arc-shaped surface and a horizontal surface.

The arc-shaped surface of the centering block 80 is provided with a plurality of arc-shaped protrusions 83, the arc-shaped protrusions 83 are matched with the secondary arc-shaped sliding groove 22, and the centering block has swinging motion in the left-right direction in the sliding matching process, specifically, has a centering capability with a small amplitude, and has positive significance for supporting a template.

The upper surface of the aligning block 80 is provided with a rectangular groove, a polytetrafluoroethylene plate 82 is placed in the groove, the polytetrafluoroethylene plate is directly contacted with the template, and the polytetrafluoroethylene plate has good self-sliding capacity.

Opposite to the top of the top plate, two slopes II and a lower surface are provided, wherein the lower surface separates the two slopes, i.e. the two slopes are respectively arranged on both sides of the lower surface, one left and one right.

The two inclined planes II form a V shape and are symmetrically arranged on two sides of the lower surface.

And a dovetail groove is arranged on each inclined plane II and is arranged along the sliding direction of the inclined plane. The dovetail grooves are provided in plural, and arranged at equal intervals.

The left support component 30, the right support component 30, the left support component and the right support component are arranged on two sides, an upper wedge block 34 is matched with the inclined surface of the top plate, the upper wedge block and the inclined surface II are in sliding fit through a dovetail groove and a wedge surface, wherein the dovetail groove is used for guiding the sliding direction and preventing the sliding direction from falling off.

The upper wedge block 34 has a wedge-shaped upper surface, a horizontal lower surface, and a dovetail groove formed in the horizontal surface.

The bolt mounting block 35 is in a strip shape, a long bolt hole penetrating horizontally is formed in the strip bolt mounting block, and the long bolt hole is used for mounting the bolt.

The upper surface and the lower surface of the pulling bolt mounting block are horizontal planes, and dovetail protrusions are respectively arranged on the upper surface and the lower surface.

And the standard cushion block 36 is also of a strip structure, the upper surface and the lower surface of the standard cushion block are horizontal planes, dovetail protrusions are respectively arranged on one surface, and a dovetail groove is arranged on the other surface.

And a lower wedge 37 disposed at a lower portion of the support assembly to be symmetrical to the upper wedge about a horizontal plane, the lower wedge having a wedge surface at a lower surface thereof and a horizontal plane at an upper surface thereof, and a dovetail groove formed at the horizontal plane.

The base 10 is arranged below the left and right supporting components, the base and the top plate are symmetrical about a horizontal shaft, the base is also provided with two inclined planes, and the two inclined planes are arranged left and right.

The two inclined planes form a splayed combination and are symmetrically arranged on two sides of the upper surface of the base.

The two inclined planes are smooth inclined planes and are in sliding wedge fit with the lower wedge blocks in the left and right supporting assemblies.

The using method of the embodiment comprises the following steps:

the method comprises the steps of firstly, inversely arranging a top plate on the ground, assembling a left side supporting assembly and a right side supporting assembly, namely, completing the installation of an upper wedge block, a tie bolt installing block, a standard cushion block and a lower wedge block on the top plate in an inverted state from bottom to top, specifically, buckling the blocks through dovetail structures meshed with each other, finally buckling a base on the top in an inverted manner, and then, carrying out auxiliary connection by using auxiliary connecting plates on the front side and the rear side. After the assembly is finished, the assembled semi-finished product is hoisted and turned over for 180 degrees, and thus the upright state and the effect are formed.

And secondly, hoisting, namely hoisting the semi-finished product to the pier top of the pier, then hoisting the centering block, finally hoisting the polytetrafluoroethylene plate, dismantling the auxiliary connecting plate after hoisting is finished, adjusting the overall height of the device by using long and long bolts, and finally assembling the template.

EXAMPLE six

Referring to fig. 18, on the basis of the fifth embodiment, the left and right support assemblies in this embodiment are of a combined structure, and a positioning pin 38 penetrating up and down is disposed on a faying surface between the upper wedge-shaped surface, the toggle bolt mounting block, the standard cushion block, and the lower wedge-shaped block, and is rigid.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should be able to make various modifications and improvements to the present invention without departing from the spirit of the present invention.

Claims

1. A supporting and unloading device for construction of a bridge cast-in-place section comprises a top plate, a base, supporting components and long bolts, wherein the two supporting components are arranged on two sides in a left-right mode and support the height between the top plate and the base;

2. The support unloading device for the construction of the cast-in-place section of the bridge as claimed in claim 1, wherein a limiting protrusion I is arranged at the front and rear edge parts of the support component, and the limiting protrusion I limits the front and rear sliding directions of the support component.

3. The support unloading device for the construction of the cast-in-place section of the bridge as claimed in claim 1, wherein limiting protrusions II are arranged on the left side and the right side of the top plate and the base, and the limiting protrusions II limit the sliding left side and the sliding right side of the support assembly.

4. The support unloading device for the construction of the cast-in-place section of the bridge according to claim 1, wherein a dovetail groove and a dovetail protrusion along a sliding direction are arranged on a sliding matching surface between the upper wedge block and the top plate.

5. The support unloading device for construction of the bridge cast-in-place section as claimed in claim 1, wherein the long bolt is provided with a forward thread section and a reverse thread section on the left and right sides respectively by taking the middle position as a boundary.

6. The support unloading device for construction of the cast-in-place section of the bridge as claimed in claim 1, wherein the upper surface of the aligning block is provided with a rectangular groove, and a polytetrafluoroethylene plate is placed in the groove.

7. The supporting and unloading device for the construction of the cast-in-place section of the bridge as claimed in claim 1, wherein a positioning pin is arranged at the overlapping surface among the upper wedge block, the tie bolt mounting block, the standard cushion block and the lower wedge block and is penetrated vertically, and the positioning pin is rigid.